Science

Sunday, 7 December 2025
13 facts about tears
13 facts about tears
Multipurpose liquid
Associated with emotions, tears are a product of lacrimal glands, found in the eyes of most terrestrial vertebrates. Although their primary function i ...

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Amber
Amber is associated with good luck and protection.
In some cultures, amber necklaces are gifted as good luck charms, to newborn babies to protect them from diseases, or as a marriage gift that represents eternal love.
Cosmos
Jupiter is the largest planet in the Solar System.
This gas giant is made up of 90 percent hydrogen and about 10 helium. The diameter of Jupiter is 139 ...
NASA
The historical landing was a part of the Apollo 11 mission.
On July 20th, 1969, Neil Armstrong walked on the lunar surface as the first human in history. Edwin ...
Titan
The atmospheric pressure at the surface is 146.7 kPa (1.5 bars), which makes it 45% higher than on Earth.
Titan’s atmosphere is made of 98.4% nitrogen, 1.4% methane, and 0.2% hydrogen, and extends up to 975 ...
Silver
The use of silver is very wide, mainly as a precious metal.
925 silver alloyed with copper is used to make jewelry, dishes and cutlery, medals, and musical inst ...
Earth
Earth is the third planet from the Sun.
It is also the first planet from the sun to have a natural satellite.
Deimos
The two largest craters of Deimos are approximately 3 kilometers in diameter: Swift and Voltaire.
They were named after two writers who claimed that Mars had two moons before this was proven.
Milky Way
Until 1920, most astronomers believed that the Milky Way contained all the stars in the universe.
Only observations made by Edwin Hubble made humanity realize that it is only one of many galaxies.
Ganymede
The moon's mantle is surrounded by layers of ice and salty liquid water.
These layers alternate. The surface of the moon consists of hard ice several kilometers thick.
NASA
The most memorable mission of Project Mercury was Freedom 7.
The liftoff took place on May 5th, 1961. It allowed Alan Shepard Jr. to go down in history as the fi ...